A.DCS B.DMS C.EMC D.EMS
A.區(qū)域智能分站 B.數(shù)據(jù)采樣系統(tǒng) C.數(shù)據(jù)控制終端 D.中央計(jì)算機(jī)系統(tǒng)
A.70% B.80% C.90% D.100%